Hydrogen iodide (data page)

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This page provides supplementary chemical data on hydrogen iodide.

Structure and properties[edit]

Structure and properties
Index of refraction 1.466
Dielectric constant 1.00214 ε0 at 20 °C
Bond strength 298.407 kJ/mol
Bond length 160.9 pm
Magnetic susceptibility ?

Thermodynamic properties[edit]

Phase behavior
Triple point ? K (? °C), ? Pa
Critical point 424 K (151 °C), 8310000 Pa
Std enthalpy change
of fusion
, ΔfusHo
? kJ/mol
Std entropy change
of fusion
, ΔfusSo
? J/(mol·K)
Std enthalpy change
of vaporization
, ΔvapHo
19.76 kJ/mol
Std entropy change
of vaporization
, ΔvapSo
? J/(mol·K)
Solid properties
Std enthalpy change
of formation
, ΔfHosolid
? kJ/mol
Standard molar entropy,
Sosolid
? J/(mol K)
Heat capacity, cp ? J/(mol K)
Liquid properties
Std enthalpy change
of formation
, ΔfHoliquid
? kJ/mol
Standard molar entropy,
Soliquid
? J/(mol K)
Heat capacity, cp ? J/(mol K)
Gas properties
Std enthalpy change
of formation
, ΔfHogas
26.5 kJ/mol
Standard molar entropy,
Sogas
206.6 J/(mol K)
Heat capacity, cp 29.2 J/(mol K)

Spectral data[edit]

UV-Vis
λmax ? nm
Extinction coefficient, ε ?
IR
Major absorption bands ? cm−1
NMR
Proton NMR  
Carbon-13 NMR  
Other NMR data  
MS
Masses of
main fragments
 

Material Safety Data Sheet[edit]

The handling of this chemical may incur notable safety precautions. It is highly recommend that you seek the Material Safety Datasheet (MSDS) for this chemical from a reliable source such as SIRI, and follow its directions.

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References[edit]